JM Yu, QY Zhou, J Wang, GW Lyu, QY Yu, the thinktank behind the awarded project paper tray in restaurant by JM Yu, QY Zhou, J Wang, GW Lyu, QY Yu demonstrates, In china, it is common for waiter to take away the finished food in fast food restaurant. However, diner sometimes leave the table temporarily such as going to restroom, and his food make be taken away by waiter. FOLD TO HOLD is a paper tray designed for someone who is having fast food alone. If he wants to leave his seat temporarily, he only needs to rive the paper along the dotted line and fold it up, which can convey the message of “haven’t finished” to hold his food..